Finding the Third Proportional to 460,753.50 and 721,210.50

Step by Step Solution

1. Step 1: Write the proportion equation
   460,753.50 : 721,210.50 = 721,210.50 : x
2. Step 2: Convert to fraction form
   460,753.50/721,210.50 = 721,210.50/x
3. Step 3: Cross multiply
   460,753.50x = 721,210.50 × 721,210.50
4. Step 4: Simplify right side
   460,753.50x = 520,144,585,310.25
5. Step 5: Solve for x
   x = 520,144,585,310.25/460,753.50
6. Step 6: Final answer
   x = 1,128,899.91